Safety-hook.



NELS PEARSON, OF DEEP BAY, BRITISH COLUMBIA, CANADA.

SAFETY-Hook.

Specification of Letters Patent.

Patented July 16, 1918.

Application filed February 14, 1918. Serial No. 217,135.

To all whom t may concern.'

Be it known that I, NnLs PEARsoN, a subject of the King of Sweden, residing at Deep Bay, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Safety Hooks, of which the following is a specication.

This invention relates to a logging hook having provision for closing the hook entrance and for latching that closure in the closed position, and the improvements are directed to the provision of a latching means that is definite and secure in its action and not liable to derangement by accumulation of mud or the like to which these hooks are subjected in use.

The invention is particularly described in the following specification, reference being made to the drawings by which it is accompanied, in which:

Figure 1 is a side elevation of the hook and its shackle showing the entrance closure in the latched position, and in dot and dash lines as opened for the reception of its connection.

Fig. 2 is a face view of the same.

Fig. 3, a cross section of the opening closure on the line 3-3 of Fig. 1, and I Fig. 4, a cross section on the line 4-4 in Fig. 1 showing the limiting stops of the latch.

In these drawings 2 represents the hook and 3 its shackle connected to it by the pin 4. The eye of this hook is bifurcated as at 5 for the reception of the closing member 6 which is mounted to turn on the shackle pin 4.

The contour of the member 6 is such that the outer edge, when closed, forms a con* tinuation of the contour of the hook from the point to the eye, and the outer lower edge of it is notched into the divided point 7 of the hook.

The closing member 6 has a rectangular aperture, the outer edge of which is coincident with the inner edge of the point 7 of the hook when the member 6 is in the closed position and in this rectangular aperture a latch member 8 is hinged adjacent the back edge of the aperture on a pin 9 screwed from the underside into the thickness of the member 6.

The hinge end of the latch member is cut away as at 10 for the reception of a coiled spring 1l, one end of which is notched at 12 into the latch member 8 and on the opposite side the other end is notched at 13 into the closing member 6. Adjacent the upper free edge of the hinge member 8 is a projection 14 beyond the face of the latch member and beyond its edge, see Fig. 4, to engage the face of 6 and limit movement of the latch member therein. The back face of the closing member' is recessed as at 15 to allow the latch member under the action of its spring to project beyond the face of the closing member and into engagement with the inner side of the hook point 7 when the lclosing member is in its closed position.

The normal position of the latch member 8 being asshown in Fig. 3 its face offers an incline to its passage through the divided point 7 of the hook, so that it will automatically latch when moved to the closed position.

The projections 7 not only limit movement of the latch at the closed and the release positions but form a convenient` finger engagement to e'ect release.

To prevent accidental release of the latch while the hook is being dragged along the ground, lthe latch release projection 14 is protected by a bead 16 formed along the outer edge of the closing member 6.

The design is such that it not only forms a secure automatic latch but its latching efliciency is not interfered with by any accumulation of mud that may collect on it while dragged over the ground and the spring by which the latch is actuated is of a kind not liable to fracture or deterioration in use.

Although designed for use. in a logging hook, the device is applicable to any hook where such security may be advantageous.

Having now particularly described my invention, I hereby declare that what I claim as new and desire to be protected in by Letters Patent, is:

1. A safety hook, comprising the combination with a'hook, of a member pivotally mounted on the eye portion of the hook and adapted to close the opening thereof, said member when in the closed position fitting a notch in the point of the hook, a latch member mounted to move laterally in the hook closing member and adapted to engage the inner side of the hook point when that member is in the closed position, means for limiting movement of the latch member at the latched and unlatched positions, and a spring normally holding the latch member in the latched position.

2. A safety hook, comprising the combination with a hook, of a member pivotally mounted on the eye portion of the hook and adapted to close the opening thereof, said member When in the closed position fitting a notch in the point of the hook, a latch member mounted on a pin adjacent the back edge of the hook closing portion and adapted to move laterally to engage the inner side of the point of the hook when the hook closing member is in the closed position, means for limiting movement of the latch member at the latched and releasepositions, and a spring normally holding the latch member in the latched position.

8. A safety hook, comprising the combination with a hook, of a member pivotally mounted on the eye portion of the hook and adapted to close the opening thereof, said member when in the closed position fitting a notch in the point of the hook, a latch member mounted on a pin adjacent the back edge of the hook closing portion and adapted to move laterally to engage the innerside of the point of the hook When the hook closing member is in the closed position, means Copies of this patent may be obtained for five cents each, by addressing the, Commissioner of Entente,

for limiting movementof the latch member at the latched and release positions, and a `spring `coiled on the-hinge pin of the latch normally holding the latch member in the latched position.

4L. A safety hook, comprising the combination with a hook and its shackle pin, of a member mounted on the shackle pin and adapted to close the opening of the hook,

said closing member tting' a notch in the D point of the hook when in the closed position and completing the contour of the hook vto the leye but not projecting sensibly beyond it, a latch member mounted in aV through aperture in the hook closing member and. adapted to engage the. inner side Nniis rnansmtY Washington, D. C. 

